我使用Amazon Linux AMI SSH'd到我的AWS EC2实例，它告诉我运行sudo yum update命令进行安全更新。 当我这样做时，它最终未能更新MySQL。
*我不知道这是否是原因，但请注意，我的MySQL是通过挂载到附加的EBS文件系统来设置的： http : //aws.amazon.com/articles/1663? _encoding=UTF8& jiveRedirect=1
这是输出：
[ec2-user@ip /]$ sudo yum update Loaded plugins: priorities, security, update-motd, upgrade-helper amzn-main | 2.1 kB 00:00 amzn-updates | 2.3 kB 00:00 Setting up Update Process Resolving Dependencies --> Running transaction check ---> Package mysql55-common.x86_64 0:5.5.32-1.35.amzn1 will be updated ---> Package mysql55-common.x86_64 0:5.5.32-1.36.amzn1 will be an update --> Finished Dependency Resolution Dependencies Resolved ====================================================================================================================================================== Package Arch Version Repository Size ====================================================================================================================================================== Updating: mysql55-common x86_64 5.5.32-1.36.amzn1 amzn-updates 47 k Transaction Summary ====================================================================================================================================================== Upgrade 1 Package(s) Total download size: 47 k Is this ok [y/N]: y Downloading Packages: mysql55-common-5.5.32-1.36.amzn1.x86_64.rpm | 47 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Updating : mysql55-common-5.5.32-1.36.amzn1.x86_64 1/2 Error unpacking rpm package mysql55-common-5.5.32-1.36.amzn1.x86_64 error: unpacking of archive failed on file /etc/my.cnf: cpio: rename Verifying : mysql55-common-5.5.32-1.36.amzn1.x86_64 1/2 mysql55-common-5.5.32-1.35.amzn1.x86_64 was supposed to be removed but is not! Verifying : mysql55-common-5.5.32-1.35.amzn1.x86_64 2/2 Failed: mysql55-common.x86_64 0:5.5.32-1.35.amzn1 mysql55-common.x86_64 0:5.5.32-1.36.amzn1 Complete!
通常情况下，出于安全原因，文件具有不可变的（i）标志时会发生。
lsattr /etc/my.cnf
chattr -i /etc/my.cnf
在Amazon EBS的情况下，看起来像文件被绑定到EBS卷上的文件：只需umount /etc/my.cnf ，运行更新并再次bind 。